Steam cooking device

Abstract

A cooking cavity is formed in an inner container, a steam generating part is configured to provide steam into the cooking cavity, the steam generating part comprises a heating pipe, a water pipe and a main body part, the water pipe surrounds the heating pipe and is provided with a first water pipe section and a second water pipe section which are communicated, and the inner diameter of the first water pipe section is larger than that of the second water pipe section; the first water pipe section communicates with the water supply device, and the second water pipe section communicates with the cooking cavity. The body portion is configured to consolidate the heating tube and the water tube to conduct heat between the heating tube and the water tube. According to the steam cooking device, the steam temperature and the steam outlet speed can be increased, and the requirement for high-temperature cooking is met.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a steam cooking device. Background Art

[0002] Steam cooking devices, such as ovens and steamers, have steam functions, and the temperature of the steam outlet is generally 100° C. However, some vegetables and seafood ingredients require high-temperature steaming, because high-temperature steaming can maintain the chlorophyll of vegetables and the freshness of seafood. Therefore, existing steam cooking devices cannot meet the steaming needs that require temperatures higher than 100° C.

[0003] In addition, the evaporator of the existing steam cooking device is in the shape of a boiler, and the main structure is a water tank with a C-shaped heating tube. The power density of this structure is low, resulting in the steam temperature not being higher than 100°C, and the gas outlet speed is slow and the volume is large.

[0004] The above information disclosed in the background technology is only used to increase the understanding of the background technology of the present application, and therefore, it may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0005] In view of the problems pointed out in the background technology, the utility model proposes a steam cooking device to improve the steam temperature and the gas outlet speed to meet the high-temperature steaming demand.

[0006] In order to achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions:

[0007] In some embodiments, a steam cooking device is provided, comprising:

[0008] The inner pot forms the cooking cavity;

[0009] A steam generating unit is configured to provide steam into the cooking cavity, and the steam generating unit comprises:

[0010] Heating tube;

[0011] a water pipe, arranged around the heating pipe, the water pipe comprising a first water pipe section and a second water pipe section which are connected, the inner diameter of the first water pipe section is larger than the inner diameter of the second water pipe section, the first water pipe section is connected to a water supply device, and the second water pipe section is connected to the cooking chamber;

[0012] The main body is configured to consolidate the heating pipe and the water pipe to conduct heat between the heating pipe and the water pipe.

[0013] In some embodiments, the water pipe is in a spiral structure, and the heating pipe is located in the space enclosed by the spiral structure.

[0014] In some embodiments, the ratio of the inner diameter of the first water pipe section to the inner diameter of the second water pipe section is 2:1.

[0015] In some embodiments, the length of the first water pipe section is greater than the length of the second water pipe section.

[0016] In some embodiments, the connecting end of the heating pipe extends from the end of the main body, and the water inlet of the first water pipe section and the air outlet of the second water pipe section extend from the side of the main body.

[0017] In some embodiments, a water storage portion is further included, and the water storage portion is configured to supply water to the water pipe. A first pipeline is set between the first section of the water pipe and the water storage portion, and a second pipeline is set between the second section of the water pipe and the cooking cavity.

[0018] In some embodiments, a top plate is further included, wherein the top plate is disposed above the inner pot, an air duct is formed between the top plate and the inner pot, and the steam generating part and the water storage part are disposed on the top plate.

[0019] In some embodiments, extension portions are respectively provided at opposite ends of the main body, the extension portions extend obliquely downward to the sides of the main body, the extension portions are fixedly connected to the top plate, and there is a gap between the bottom of the main body and the top plate.

[0020] In some embodiments, a first opening is provided on the top plate, a second opening is provided on the top wall of the inner tank, the second opening is connected to a through-tube, the through-tube extends above the top plate through the first opening, a cover plate is provided on the top of the through-tube, and the second pipeline is connected to the cover plate.

[0021] In some embodiments, a water pump is disposed on the first pipeline, a mounting frame is disposed on the top plate, the water pump is disposed on the mounting frame, and a gap is provided between the mounting frame and the top plate.

[0022] Compared with the prior art, the advantages and positive effects of the utility model are:

[0023] In the steam cooking device disclosed in the present application, the steam generating part includes a heating pipe, a water pipe and a main body. The water pipe has a first water pipe section and a second water pipe section which are connected. The inner diameter of the first water pipe section is larger than the inner diameter of the second water pipe section. The water in the water supply device first flows into the first water pipe section. During the process of the water flowing along the first water pipe section, the water is heated to about 100°C and becomes water vapor. The water vapor continues to flow along the second water pipe section and is heated again. The temperature continues to rise. The temperature is higher than 100°C and can reach about 200°C. The high-temperature water vapor flows into the cooking cavity, and the food is cooked with high-temperature steam to meet the high-temperature steaming requirements of the food.

[0024] The water pipe is set as a two-section structure. When water vapor flows out from the second section of the water pipe, due to the small inner diameter and small cross-sectional area of ​​the second section of the water pipe, the steam outflow speed is increased, and the steam is injected into the cooking cavity at high speed, so that the steam can quickly reach the surface of the food and improve the steaming efficiency of the food.

[0025] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become more clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0027] Figure 1 is a structural diagram of a steam cooking device according to some embodiments;

[0028] Figure 2 is a top view of a steam cooking device according to some embodiments;

[0029] Figure 3 for Figure 2 Middle AA section view;

[0030] Figure 4 for Figure 3 Enlarged view of middle part B;

[0031] Figure 5 is a structural diagram of a steam generating part according to some embodiments;

[0032] Figure 6 is a side view of a steam generating portion according to some embodiments;

[0033] Figure 7 for Figure 6 Middle CC section view;

[0034] Figure 8 is a top view of a steam generating portion according to some embodiments;

[0035] Fig. 9 for Figure 8 Middle DD section view;

[0036] Fig.10 is a structural diagram of a heating tube according to some embodiments;

[0037] Fig.11 is a structural diagram of a water pipe according to some embodiments;

[0038] Reference numerals:

[0039] 100, inner pot; 110, cooking cavity; 120, second opening;

[0040] 200, steam generating part;

[0041] 210, heating tube; 211, connecting end;

[0042] 220, water pipe; 221, water pipe section 1; 222, water pipe section 2; 223, water inlet; 224, air outlet;

[0043] 230, main body; 231, extension; 232, gap;

[0044] 300, water storage unit; 310, water pump;

[0045] 410, first pipeline; 420, second pipeline; 430, through pipe; 440, cover plate;

[0046] 500, top plate; 510, mounting frame;

[0047] 600. Air duct. DETAILED DESCRIPTION

[0048] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0049] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0050] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0051] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0052] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0053] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are merely examples, and the purpose is not to limit the utility model. In addition, the utility model may repeat reference numbers and / or reference letters in different examples, and such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art may be aware of the application of other processes and / or the use of other materials.

[0054] This embodiment discloses a steam cooking device, such as a steamer, an oven, etc., which has a steam function and uses high-temperature steam to cook food.

[0055] Reference Figure 1 The steam cooking device includes an inner pot 100, which forms a cooking cavity 110. The front side of the inner pot 100 is open, serving as an entrance and exit for food. The steam cooking device includes a door body (not shown), which is disposed at the front opening of the inner pot 100 and is used to close or open the cooking cavity 110.

[0056] The steam cooking device includes a steam generating unit 200 , and the steam generating unit 200 is configured to provide steam into the cooking cavity 110 , and cook the food in the cooking cavity 110 using high-temperature steam.

[0057] The structure of the steam generating unit 200 is as follows: Figures 5 to 9 As shown, a heating tube 210 is included.

[0058] In some embodiments, the heating tube 210 is an electric heating tube, and the heating tube 210 is electrically heated.

[0059] In some embodiments, the structure of the heating tube 210 is shown in FIG10 , and the heating tube 210 is a U-shaped tube.

[0060] In other embodiments, the heating tube 210 is formed by connecting a plurality of U-shaped tube structures end to end in sequence to form a serpentine structure.

[0061] The steam generating unit 200 includes a water pipe 220. A structure of the water pipe 220 is as follows: Fig.11 See Figure 7 and Fig. 9 The water pipe 220 is arranged around the heating pipe 210. The water pipe 220 is arranged on the outer periphery of the heating pipe 210. Water flows in the water pipe 220.

[0062] The steam generating part 200 includes a main body 230, which is configured to consolidate the heating pipe 210 and the water pipe 220 to conduct heat between the heating pipe 210 and the water pipe 220. The main body 230 is made of metal material or non-metal material with excellent thermal conductivity, such as die-cast aluminum.

[0063] When the steam generating part 200 is working, water flows in the water pipe 220, the heating pipe 210 is heated, and the heat generated by the heating pipe 210 is transferred to the water pipe 220 through the main body 230, the water in the water pipe 220 is heated, the water in the water pipe 220 is heated to generate steam, and the steam flows into the cooking cavity 110.

[0064] The water pipe 220 includes a first water pipe section 221 and a second water pipe section 222 which are connected. The inner diameter of the first water pipe section 221 is larger than the inner diameter of the second water pipe section 222 . The first water pipe section 221 is connected to the water supply device, and the second water pipe section 222 is connected to the cooking chamber 110 .

[0065] The first water pipe section 221 and the second water pipe section 222 are both arranged around the heating pipe 210. The water in the water supply device first flows into the first water pipe section 221. During the process of the water flowing along the first water pipe section 221, the water is heated to about 100°C and becomes water vapor. The water vapor continues to flow along the second water pipe section 222 and is heated again. The temperature continues to rise. The temperature is higher than 100°C and can reach about 200°C. The high-temperature water vapor flows into the cooking cavity 110 to perform high-temperature steam cooking on the food.

[0066] The water pipe 220 is configured as a two-section structure, wherein the inner diameter of the first section 221 of the water pipe is larger than the inner diameter of the second section 222 of the water pipe. When water vapor flows out of the second section 222 of the water pipe, due to the small inner diameter and cross-sectional area of ​​the second section 222 of the water pipe, the steam pressure is large, thereby increasing the steam outflow speed, and the steam is injected into the cooking cavity 110 at a high speed, so that the steam can quickly reach the surface of the food, thereby increasing the efficiency of steaming the food.

[0067] In some embodiments, the ratio of the inner diameter of the first water pipe section 221 to the inner diameter of the second water pipe section 222 is 2: 1. For example, the inner diameter of the first water pipe section 221 is φ6 mm, and the inner diameter of the second water pipe section 222 is φ3 mm.

[0068] The above inner diameter settings of the first water pipe section 221 and the second water pipe section 222 can take into account both the heating of water in the water pipe 220 into steam and the high-speed injection of the steam into the cooking cavity 110 .

[0069] In some embodiments, the length of the first water pipe section 221 is greater than the length of the second water pipe section 222 .

[0070] The above-mentioned length settings of the water pipe section 121 and the water pipe section 222 ensure that the water can be heated to 100° C. in the water pipe section 221 and turned into water vapor, and the water vapor is further heated to about 200° C. in the water pipe section 222 and sprayed into the cooking cavity 110 at a high speed.

[0071] In some embodiments, the water pipe 220 is in a spiral structure, and the heating pipe 210 is located in a space surrounded by the spiral structure.

[0072] The spiral water pipe 220 is arranged around the flat extending heating pipe 210, and the water pipe 220 and the heating pipe 210 are consolidated by the main body 230. The space between the water pipe 220 and the heating pipe 210 is filled with the heat-conducting main body 230, thereby improving the heat conduction efficiency between the water pipe 220 and the heating pipe 210, thereby improving the heating efficiency of the water in the water pipe 220.

[0073] The spiral water pipe 220 is arranged around the flat extending heating pipe 210, so that the layout of the water pipe 220 and the heating pipe 210 is more compact and flat, thereby reducing the volume of the steam generating part 200 and realizing a miniaturized design.

[0074] In some embodiments, reference Figure 5 The connecting end 211 of the heating tube 210 extends from the end of the main body 230 so as to be connected to an external power supply device. The ends of the main body 230 are two opposite ends extending along the length direction thereof.

[0075] Reference Figure 5 and Figure 6The water inlet 223 of the first water pipe section 221 and the air outlet 224 of the second water pipe section 222 extend from the side of the main body 230. The side of the main body 230 is two opposite sides extending along the width direction thereof.

[0076] For example, the water inlet 223 of the first water pipe section 221 extends from one side of the main body 230 , and the air outlet 224 of the second water pipe section 222 extends from the other opposite side of the main body 230 . The water inlet 223 and the air outlet 224 are located on opposite sides of the main body 230 .

[0077] The connection end 211 of the heating pipe 210, the water inlet 223 and the air outlet 224 of the water pipe 220 are located on different sides of the main body 230, which is convenient for wiring and pipe connection.

[0078] In some embodiments, reference Figure 1 The steam cooking device further includes a water storage portion 300, which is configured to supply water to the water pipe 220. A first pipeline 410 is provided between the first water pipe section 221 and the water storage portion 300, and a second pipeline 420 is provided between the second water pipe section 222 and the cooking cavity 110.

[0079] The water in the water storage part 300 flows into the water pipe 220 through the first pipeline 410 . The water is heated into high-temperature steam while flowing along the water pipe 220 . The steam flows into the cooking cavity 110 through the second pipeline 420 .

[0080] Water is supplied to the water pipe 220 through the water storage unit 300 to ensure the water supply of steam.

[0081] A water level sensor is provided in the water storage part 300 to detect the amount of water in the water storage part 300. When the water level in the water storage part 300 is detected to be lower than the system setting value, the user is reminded to add water to the water storage part 300 in time to prevent the steam generating part 200 from drying out.

[0082] In some embodiments, reference Figure 1 The steam cooking device includes a top plate 500 , which is disposed above the inner pot 100 , and an air duct 600 is formed between the top plate 500 and the inner pot 100 , and the steam generating part 200 and the water storage part 300 are disposed on the top plate 500 .

[0083] The water storage part 300 is openly disposed near the front side of the inner container 100. A water filling port is disposed on the water storage part 300 so that the user can add water into the water storage part 300.

[0084] The steam generating part 200 is arranged behind the water storage part 300. The steam generating part 200 and the water storage part 300 are both flattened in design, making full use of the space above the top plate 500 to avoid causing the height dimension of the steam cooking device to increase too much.

[0085] In some embodiments, reference Figure 5 and Fig. 9 Extension portions 231 are respectively provided at opposite ends of the main body 230 , and the extension portions 231 extend obliquely downward to the side of the main body 230 . The extension portions 231 are fixedly connected to the top plate 500 to fix the steam generating portion 200 to the top plate 500 .

[0086] Combination Figure 4 There is a gap 232 between the bottom of the main body 230 and the top plate 500, which reduces the heat conduction between the main body 230 and the top plate 500, so that the heat on the main body 230 can be fully utilized by the water pipe 220. At the same time, since the air duct 600 is below the top plate 500, the main body 230 is lifted away from the top plate 500 by the extension part 231, which can also reduce the heat transfer between the air duct 600 and the main body 230.

[0087] In some embodiments, reference Figure 1 A water pump 310 is disposed on the first pipeline 410, and the water pump 310 provides water flow power. A mounting frame 510 is disposed on the top plate 500, and the water pump 310 is disposed on the mounting frame 510, so that the water pump 310 is fixedly installed on the top plate 500.

[0088] There is a gap 232 between the mounting frame 510 and the top plate 500. Since the air duct 600 is below the top plate 500, the water pump 310 is lifted off the top plate 500 by the mounting frame 510, so that the heat transfer between the air duct 600 and the water pump 310 can be reduced.

[0089] In some embodiments, reference Figure 4 A first opening (not marked) is provided on the top plate 500, a second opening 120 is provided on the top wall of the inner tank 100, the second opening 120 is connected to the through-tube 430, the through-tube 430 extends above the top plate 500 through the first opening, a cover plate 440 is provided on the top of the through-tube 430, and the second pipeline 420 is connected to the cover plate 440.

[0090] The through-tube 430 enables the second water pipe section 222 to communicate with the cooking chamber 110, which facilitates the connection of the second water pipe section 222. The through-tube 430 is placed in the air duct 600. When the fluid in the air duct 600 flows through the through-tube 430, the through-tube 430 will not be shaken, and the fluid in the air duct 600 avoids the second water pipe section 222.

[0091] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0092] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited to this. Any changes or substitutions that can be easily thought of by technicians familiar with the technical field within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A steam cooking device, characterized in that: include: The inner pot forms the cooking cavity; A steam generating unit is configured to provide steam into the cooking cavity, and the steam generating unit comprises: Heating tube; a water pipe, arranged around the heating pipe, the water pipe comprising a first water pipe section and a second water pipe section which are connected, the inner diameter of the first water pipe section is larger than the inner diameter of the second water pipe section, the first water pipe section is connected to a water supply device, and the second water pipe section is connected to the cooking chamber; The main body is configured to consolidate the heating pipe and the water pipe to conduct heat between the heating pipe and the water pipe.

2. The steam cooking device according to claim 1, characterized in that: The water pipe is in a spiral structure, and the heating pipe is located in a space surrounded by the spiral structure.

3. The steam cooking device according to claim 1, characterized in that: The ratio of the inner diameter of the first water pipe section to the inner diameter of the second water pipe section is 2:

1.

4. The steam cooking device according to claim 1, characterized in that: The length of the first water pipe section is greater than the length of the second water pipe section.

5. The steam cooking device according to claim 1, characterized in that: The connecting end of the heating pipe extends out from the end of the main body, and the water inlet of the first water pipe section and the air outlet of the second water pipe section extend out from the side of the main body.

6. The steam cooking device according to any one of claims 1 to 5, characterized in that: It also includes a water storage part, which is configured to supply water to the water pipe. A first pipeline is arranged between the first section of the water pipe and the water storage part, and a second pipeline is arranged between the second section of the water pipe and the cooking cavity.

7. The steam cooking device according to claim 6, characterized in that: It also includes a top plate, which is arranged above the inner pot, and an air duct is formed between the top plate and the inner pot, and the steam generating part and the water storage part are arranged on the top plate.

8. The steam cooking device according to claim 7, characterized in that: Extension parts are respectively arranged at opposite ends of the main body, and the extension parts extend obliquely downward to the side of the main body. The extension parts are fixedly connected to the top plate, and a gap is formed between the bottom of the main body and the top plate.

9. The steam cooking device according to claim 7, characterized in that: A first opening is arranged on the top plate, a second opening is arranged on the top wall of the inner tank, the second opening is connected to a through pipe, the through pipe extends above the top plate through the first opening, a cover plate is arranged on the top of the through pipe, and the second pipeline is connected to the cover plate.

10. The steam cooking device according to claim 7, characterized in that: A water pump is arranged on the first pipeline, a mounting frame is arranged on the top plate, the water pump is arranged on the mounting frame, and a gap is provided between the mounting frame and the top plate.

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